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net: sun8i-emac: Add support for active-low leds with internal PHY

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A device-tree property is already defined to indicate that the internal
PHY should be used with active-low leds, which corresponds to a
specific bit in the dedicated syscon register.

Add support for setting this bit when the property is present.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Paul Kocialkowski
2025-10-27 11:12:56 +00:00
committed by Andre Przywara
parent 8513f7e78a
commit 48293ab19a
1 changed files with 8 additions and 0 deletions
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drivers/net/sun8i_emac.c
+8
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@@ -175,6 +175,7 @@ struct sun8i_eth_pdata {
u32 reset_delays[3];
int tx_delay_ps;
int rx_delay_ps;
bool leds_active_low;
};
static int sun8i_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
@@ -298,6 +299,9 @@ static int sun8i_emac_set_syscon(struct sun8i_eth_pdata *pdata,
reg |= priv->phyaddr << H3_EPHY_ADDR_SHIFT;
reg |= H3_EPHY_CLK_SEL;
reg |= H3_EPHY_SELECT;
if (pdata->leds_active_low)
reg |= H3_EPHY_LED_POL;
} else {
reg |= H3_EPHY_SHUTDOWN;
}
@@ -845,6 +849,10 @@ static int sun8i_emac_eth_of_to_plat(struct udevice *dev)
printf("%s: Invalid RX delay value %d\n", __func__,
sun8i_pdata->rx_delay_ps);
sun8i_pdata->leds_active_low =
fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev),
"allwinner,leds-active-low");
if (fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev),
"snps,reset-active-low"))
reset_flags |= GPIOD_ACTIVE_LOW;